[{"_1":2,"_3":-5,"_4":-5},"loaderData",{"_5":6,"_7":8,"_9":10},"actionData","errors","root",{"_307":308,"_309":310},"routes/_app.x.$handle.$name",{"_101":100,"_32":46,"_110":91,"_27":111,"_13":14,"_112":-5,"_11":113,"_114":115,"_116":117,"_118":119,"_120":121,"_20":-5,"_122":-5,"_123":-5,"_124":25,"_125":126,"_127":60,"_128":-5,"_129":-5,"_130":131},"routes/_app.x.$handle.$name.branch.$branch.version.$version.diff",{"_11":12,"_13":14,"_15":16,"_17":-5,"_18":-5},"project",{"_44":45,"_32":46,"_39":47,"_48":-5,"_49":25,"_50":51,"_52":51,"_53":54,"_55":-5,"_18":56,"_57":58,"_59":60,"_61":-5,"_62":-5,"_63":64,"_65":66,"_67":68,"_69":70,"_71":72,"_73":-5,"_74":75,"_76":75,"_77":78,"_79":78,"_80":78,"_81":75,"_82":75,"_83":84,"_85":86,"_87":88,"_89":25},"version",189,"changes",[19],"aiChatInfo","userId",{"_20":21,"_22":23,"_24":25,"_26":25,"_27":28,"_29":28},"file",{"_30":31,"_32":33,"_34":35,"_36":38,"_39":40,"_41":14,"_42":43,"_24":25},"previous",{"_30":31,"_32":33,"_34":35,"_36":37},"deleted",false,"deletedHere","path","frontend/components/EndScreen.tsx","latestPath","fileId","f8d822fa-a3cf-11f1-87dc-1607ee4eb77e","name","EndScreen.tsx","fileType","script","content","/** @jsxImportSource https://esm.sh/react@18.2.0 */\nimport React from \"https://esm.sh/react@18.2.0\";\nimport { CheckCircle2, RotateCcw, Settings2, Target, Trophy, Zap } from \"https://esm.sh/lucide-react@0.468.0?deps=react@18.2.0,react-dom@18.2.0\";\nimport type { Attempt, Config } from \"../lib/polyatomics.ts\";\n\nfunction Stat({ icon, value, label }: { icon: React.ReactNode; value: string; label: string }) { return

{icon}

{value}

{label}

; }\n\nexport function EndScreen({ attempts, config, onRetry, onNew }: { attempts: Attempt[]; config: Config; onRetry: () => void; onNew: () => void }) {\n const correct = attempts.filter((a) => a.correct).length;\n const accuracy = attempts.length ? Math.round(correct / attempts.length * 100) : 0;\n const validTimes = attempts.filter((a) => a.timeLeft !== null && config.seconds !== null).map((a) => config.seconds! - a.timeLeft!);\n const averageTime = validTimes.length ? (validTimes.reduce((a,b) => a+b, 0) / validTimes.length).toFixed(1) : \"—\";\n const missed = [...new Set(attempts.filter((a) => !a.correct).map((a) => a.ion.name))];\n return

Session complete!

Here’s how your recall went.

} value={`${accuracy}%`} label=\"accuracy\"/>} value={`${correct}/${attempts.length}`} label=\"correct\"/>} value={averageTime === \"—\" ? \"—\" : averageTime + \"s\"} label=\"avg. answer\"/>

Your strengths{missed.length ? \"Keep practicing\" : \"Excellent recall\"}

{missed.length ? <>Review {missed.slice(0,3).join(\", \")}{missed.length > 3 ? ` and ${missed.length - 3} more` : \"\"} next time. : <>You answered every question correctly. Try a shorter time limit or more ions for a harder round.}

;\n}\n","/** @jsxImportSource https://esm.sh/react@18.2.0 */\nimport React from \"https://esm.sh/react@18.2.0\";\nimport { CheckCircle2, RotateCcw, Settings2, Target, Trophy, Zap } from \"https://esm.sh/lucide-react@0.468.0?deps=react@18.2.0,react-dom@18.2.0\";\nimport type { Attempt, Config } from \"../lib/polyatomics.ts\";\n\nfunction Stat({ icon, value, label }: { icon: React.ReactNode; value: string; label: string }) { return

{icon}

{value}

{label}

Session complete!

Here’s how your recall went.

} value={`${accuracy}%`} label=\"accuracy\"/>} value={`${correct}/${attempts.length}`} label=\"correct\"/>} value={averageTime === \"—\" ? \"—\" : averageTime + \"s\"} label=\"avg. answer\"/>

Your strengths{missed.length ? \"Keep practicing\" : \"Excellent recall\"}

;\n}\n","createdAt",["D",1788037732790],"branchVersion","branchId","91efcfc2-57fc-4e40-a802-a0a982202b7c","id","b7e65ae6-0a45-4ddf-9a18-259d42abc50b","polyatomics",["D",1787973066715],"deletedAt","legacyEnvVars","privacy","public","httpPrivacy","description","Practice polyatomic ion formulas and charges","imageUrl","a0dbc0e3-e526-4d2e-b19c-fcb458a27a4e","pinnedFileId","01a04b7f-e043-776f-9b1e-67170ce79a7b","pinPreview",true,"pinMigrated","screenshotVersion","likeCount",0,"orgId","01a04933-e278-70de-a7be-b64137dd639b","tursoName","b7e65ae60a454ddf9a18259d42abc50b","tursoHostname","b7e65ae60a454ddf9a18259d42abc50b-val-town.aws-us-east-2.turso.io","tursoMeasuredAt",["D",1789535451117],"pinned","userPerm","r","valPerm","blobPerm","rw","emailPerm","sqlitePerm","projectPerm","telemetryPerm","user",{"_101":100,"_109":105},"org",{"_101":100,"_102":103,"_104":105,"_18":56,"_106":107,"_108":25},"branch",{"_13":90,"_32":91,"_44":43,"_92":45,"_93":-5,"_94":-5,"_95":-5,"_96":-5,"_97":-5,"_98":46,"_99":100},"isOwned",242,"main","projectId","forkedBranchId","forkedBranchVersion","forkedProjectPrivacy","forkedProjectId","forkedProjectOrgId","projectName","userHandle","altors_graphika","handle","displayName","Altors-Graphika","avatar","https://imagedelivery.net/iHX6Ovru0O7AjmyT5yZRoA/d88c49d9-df42-4251-2a99-48ca93b86e01/square512?exp=1789567199&sig=6cb9d40b5c6448edfd278bf81a16aef50eed8d7c0989cea2918cb33c238fbea1","tier","free","canRestrictVals","profileImageUrl","branchName","","adoptOrgId",{"_44":45,"_32":46,"_39":302,"_48":-5,"_49":25,"_50":51,"_52":51,"_53":54,"_55":-5,"_18":56,"_57":58,"_59":60,"_61":-5,"_62":-5,"_63":64,"_65":66,"_67":68,"_69":70,"_71":303,"_73":-5,"_74":75,"_76":75,"_77":78,"_79":78,"_80":78,"_81":75,"_82":75,"_83":304,"_85":305,"_87":306,"_89":25},"tree",[170,185,186],"files",[170,171,172,173,174,175,176,177,178,179,180,181,182,183,184,185,186],"counts",{"_160":64,"_161":151,"_162":64,"_163":164,"_165":166},"contents",[132,133,134],"upstreamProject","upstreamBranch","emptyEnvVars","flags",[],"hasHttpFiles","grants","orgs","customDomains",{},{"_44":154,"_32":155,"_30":156,"_137":-5,"_42":43,"_41":151,"_139":60,"_39":157,"_13":64,"_34":158,"_36":-5,"_24":25,"_144":-5,"_27":159},{"_44":146,"_32":147,"_30":148,"_137":-5,"_42":43,"_41":149,"_139":60,"_39":150,"_13":151,"_34":20,"_36":152,"_24":25,"_144":-5,"_27":153},{"_44":135,"_32":136,"_30":58,"_137":-5,"_42":43,"_41":138,"_139":60,"_39":140,"_13":141,"_34":142,"_36":143,"_24":25,"_144":46,"_27":145},"e9eb1765-be20-45bc-b40c-2fe4c6e163d4","index.ts","parentId",169,"latest",["D",1788037454141],9,"http","import { parseVal, serveImmutableFile } from \"https://esm.town/v/std/utils/index.ts\";\nimport { Hono } from \"npm:hono\";\nimport { Root } from \"./frontend/root.tsx\";\n\nconst app = new Hono();\n\napp.get(\"/\", (c) => c.html(Root()));\napp.get(\"/__immutable/*\", (c) => serveImmutableFile(c.req.path));\napp.get(\"/source\", (c) => c.redirect(parseVal().links.self.val));\napp.onError((err) => Promise.reject(err));\n\nexport default app.fetch;\n","label",[136],"8fd05197-c6e3-4b8e-b16a-e383aca59d99","README.md","01a04b7f-e043-776f-9b1e-61c237442125",146,["D",1788025063496],1,"# Polyatomics\n\nA focused practice app for memorizing common polyatomic ion formulas and charges.\n\n## Features\n\n- Practice 32 common polyatomic ions.\n- Choose a time limit or practice without a timer.\n- Practice by category or select individual ions.\n- Loop mode continuously cycles through the selected pool.\n- Immediate feedback shows the correct formula and charge.\n- Session results include accuracy, correct answers, average answer time, and missed ions.\n- Installable as a PWA with update notifications.\n\n## Architecture\n\n```mermaid\ngraph LR\n Browser -->|GET /| Hono[\"index.ts\"]\n Hono -->|HTML shell| Root[\"frontend/root.tsx\"]\n Root --> Entry[\"frontend/index.tsx\"]\n Entry --> App[\"frontend/components/App.tsx\"]\n App --> Start[\"StartScreen.tsx\"]\n App --> Quiz[\"QuizScreen.tsx\"]\n App --> End[\"EndScreen.tsx\"]\n App --> Install[\"InstallNudge.tsx\"]\n App --> Session[\"hooks/useQuizSession.ts\"]\n Session --> Rules[\"lib/quiz.ts\"]\n Rules --> Data[\"lib/polyatomics.ts\"]\n```\n\n## File structure\n\n```text\nindex.ts\nfrontend/\n root.tsx # HTML shell and immutable asset URLs\n index.tsx # React entrypoint and service-worker registration\n manifest.webmanifest # PWA metadata\n favicon.svg # App icon\n favicon-green.svg # App icon used by the shell\n icon-192.svg\n icon-512.svg\n components/\n App.tsx # Composition/root component\n StartScreen.tsx # Session configuration\n QuizScreen.tsx # Question and answer UI\n EndScreen.tsx # Session results\n InstallNudge.tsx # Install/update UI\n hooks/\n useQuizSession.ts # Quiz state and transitions\n lib/\n polyatomics.ts # Ion data, types, and defaults\n quiz.ts # Pure quiz rules and formatting helpers\n```\n\n## Design principles\n\nThe UI components are intentionally thin. Quiz behavior lives in `useQuizSession`, while pure domain rules live in `lib/quiz.ts`. The ion dataset and shared types live in `lib/polyatomics.ts`, so other practice modes can reuse them without depending on the UI.\n\nThe app does not require application cookies or a login to practice. Browser persistence for the install prompt is treated as optional: if web storage is unavailable or blocked, the prompt simply falls back to its default behavior and the quiz remains usable.\n\n## Development\n\nThe HTTP entrypoint is `index.ts`. React components live under `frontend/components/`, with reusable state and domain logic under `frontend/hooks/` and `frontend/lib/`.\n\nThe app uses React 18, Hono, Twind, and immutable Val Town asset URLs.\n",[147],"aa37af58-90fd-4bfa-85a4-500c985f1deb","frontend","01a04b7f-e043-776f-9b1e-58a885ba27e3",["D",1787973066715],"directory",[155],"pulls","branches","forks","envVars",{"_167":64,"_169":64},"connections",{"_167":64,"_168":64},"count","unfilledCount","emptyCount",{"_44":154,"_32":155,"_30":156,"_137":-5,"_42":43,"_41":151,"_139":60,"_39":299,"_13":64,"_34":158,"_36":-5,"_24":25,"_144":-5,"_188":300,"_27":301},{"_44":295,"_32":272,"_30":266,"_137":156,"_42":43,"_41":151,"_139":60,"_39":296,"_13":64,"_34":158,"_36":-5,"_24":25,"_144":-5,"_188":297,"_27":298},{"_44":286,"_32":287,"_30":288,"_137":266,"_42":43,"_41":289,"_139":25,"_39":290,"_13":291,"_34":35,"_36":292,"_24":25,"_144":-5,"_188":293,"_27":294},{"_44":282,"_32":33,"_30":31,"_137":266,"_42":43,"_41":14,"_139":25,"_39":283,"_13":151,"_34":35,"_36":38,"_24":25,"_144":-5,"_188":284,"_27":285},{"_44":273,"_32":274,"_30":275,"_137":266,"_42":43,"_41":276,"_139":25,"_39":277,"_13":278,"_34":35,"_36":279,"_24":25,"_144":-5,"_188":280,"_27":281},{"_44":263,"_32":264,"_30":265,"_137":266,"_42":43,"_41":267,"_139":25,"_39":268,"_13":208,"_34":35,"_36":269,"_24":25,"_144":-5,"_188":270,"_27":271},{"_44":259,"_32":258,"_30":251,"_137":156,"_42":43,"_41":231,"_139":60,"_39":260,"_13":64,"_34":158,"_36":-5,"_24":25,"_144":-5,"_188":261,"_27":262},{"_44":248,"_32":249,"_30":250,"_137":251,"_42":43,"_41":252,"_139":25,"_39":253,"_13":254,"_34":35,"_36":255,"_24":25,"_144":-5,"_188":256,"_27":257},{"_44":244,"_32":236,"_30":230,"_137":156,"_42":43,"_41":231,"_139":60,"_39":245,"_13":64,"_34":158,"_36":-5,"_24":25,"_144":-5,"_188":246,"_27":247},{"_44":237,"_32":238,"_30":239,"_137":230,"_42":43,"_41":231,"_139":25,"_39":240,"_13":64,"_34":35,"_36":241,"_24":25,"_144":-5,"_188":242,"_27":243},{"_44":227,"_32":228,"_30":229,"_137":230,"_42":43,"_41":231,"_139":25,"_39":232,"_13":64,"_34":35,"_36":233,"_24":25,"_144":-5,"_188":234,"_27":235},{"_44":219,"_32":220,"_30":221,"_137":156,"_42":43,"_41":222,"_139":60,"_39":223,"_13":151,"_34":20,"_36":224,"_24":25,"_144":-5,"_188":225,"_27":226},{"_44":212,"_32":213,"_30":214,"_137":156,"_42":43,"_41":151,"_139":60,"_39":215,"_13":64,"_34":20,"_36":216,"_24":25,"_144":-5,"_188":217,"_27":218},{"_44":203,"_32":204,"_30":205,"_137":156,"_42":43,"_41":206,"_139":60,"_39":207,"_13":208,"_34":35,"_36":209,"_24":25,"_144":-5,"_188":210,"_27":211},{"_44":194,"_32":195,"_30":196,"_137":156,"_42":43,"_41":197,"_139":25,"_39":198,"_13":199,"_34":35,"_36":200,"_24":25,"_144":-5,"_188":201,"_27":202},{"_44":146,"_32":147,"_30":148,"_137":-5,"_42":43,"_41":149,"_139":60,"_39":191,"_13":151,"_34":20,"_36":152,"_24":25,"_144":-5,"_188":192,"_27":193},{"_44":135,"_32":136,"_30":58,"_137":-5,"_42":43,"_41":138,"_139":60,"_39":187,"_13":141,"_34":142,"_36":143,"_24":25,"_144":46,"_188":189,"_27":190},["D",1788037454141],"children",[],[136],["D",1788025063496],[],[147],"c6ec41ac-ad23-4ebf-8a13-0f914618f411","root.tsx","01a04b7f-e043-776f-9b1e-554f5bc7b179",188,["D",1788037730437],20,"/** @jsxImportSource npm:hono@4/jsx */\nimport { raw } from \"npm:hono@4/html\";\nimport { immutableFileUrl } from \"https://esm.town/v/std/utils/index.ts\";\n\nexport function Root() {\n return (\n <>\n {raw(\"\")}\n \n \n \n \n \n \n \n \n Polyatomics\n

Diff · v189